[PATCH] D80824: [CodeGen][SVE] Avoid scalarizing zero splat stores on scalable vectors.

[Danilo Carvalho Grael via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rG4dcc0d1958f8: [CodeGen][SVE] Avoid scalarizing zero splat stores on scalable vectors. (authored by hkao13, committed by dancgr).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D80824/new/

https://reviews.llvm.org/D80824

Files:
  llvm/lib/Target/AArch64/AArch64ISelLowering.cpp


Index: llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
===================================================================
--- llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
+++ llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
@@ -12069,6 +12069,10 @@
   SDValue StVal = St.getValue();
   EVT VT = StVal.getValueType();
 
+  // Avoid scalarizing zero splat stores for scalable vectors.
+  if (VT.isScalableVector())
+    return SDValue();
+
   // It is beneficial to scalarize a zero splat store for 2 or 3 i64 elements or
   // 2, 3 or 4 i32 elements.
   int NumVecElts = VT.getVectorNumElements();


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